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NetEq: Create an audio interruption metric

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This CL adds a new metric to NetEq, which logs whenever a loss
concealment event has lasted longer than 150 ms (an "interruption").
The number of such events, as well as the sum length of them, is kept
in a SampleCounter, which can be queried at any time.

Any initial PLC at the beginning of a call, before the first packet is
decoded, is ignored.

Unit tests and piping to neteq_rtpplay are included.

Bug: webrtc:10549
Change-Id: I8a224a34254c47c74317617f420f6de997232d88
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132796
Reviewed-by: Minyue Li <minyue@webrtc.org>
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27781}
This commit is contained in:
Henrik Lundin
2019-04-26 09:47:07 +02:00
committed by Commit Bot
parent 42fa30fdac
commit 2a8bd090a3
8 changed files with 164 additions and 0 deletions
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20
modules/audio_coding/neteq/statistics_calculator.cc
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@ -29,6 +29,8 @@ size_t AddIntToSizeTWithLowerCap(int a, size_t b) {
"int must not be wider than size_t for this to work");
return (a < 0 && ret > b) ? 0 : ret;
}
constexpr int kInterruptionLenMs = 150;
} // namespace
// Allocating the static const so that it can be passed by reference to
@ -176,6 +178,24 @@ void StatisticsCalculator::ExpandedNoiseSamplesCorrection(int num_samples) {
ConcealedSamplesCorrection(num_samples, false);
}
void StatisticsCalculator::DecodedOutputPlayed() {
decoded_output_played_ = true;
}
void StatisticsCalculator::EndExpandEvent(int fs_hz) {
RTC_DCHECK_GE(lifetime_stats_.concealed_samples,
concealed_samples_at_event_end_);
const int event_duration_ms =
1000 *
(lifetime_stats_.concealed_samples - concealed_samples_at_event_end_) /
fs_hz;
if (event_duration_ms >= kInterruptionLenMs && decoded_output_played_) {
lifetime_stats_.interruption_count++;
lifetime_stats_.total_interruption_duration_ms += event_duration_ms;
}
concealed_samples_at_event_end_ = lifetime_stats_.concealed_samples;
}
void StatisticsCalculator::ConcealedSamplesCorrection(int num_samples,
bool is_voice) {
if (num_samples < 0) {